Windows 7 graphic error when i runing high graphic games

[ghazizadeh]

hi every one
my graphic card is "nvidia geforce gtx 550 gt"
when i running any high graphic game like "call off duty" or ... , some times( actually most of the time) my screen being shout down and after more second recover graphic card and rise screen and continue the game ..
...
do you have any idea what i can do ?

 

[Josephur]

My first step would be to see if the card's cooling fan is working correctly. Blow it off with some compressed air as well, and remove and re-insert it into the slot.

Then I would follow that up with the very latest drivers for your graphics card directly from nVidia.